Evidence map›Paper›PMID 29117201›Full record

ArticlePloS one2017

Whole exome sequencing in thrombophilic pedigrees to identify genetic risk factors for venous thromboembolism.

Marisa L R Cunha, Joost C M Meijers, Frits R Rosendaal, Astrid van Hylckama Vlieg, Pieter H Reitsma, Saskia Middeldorp

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Marisa L R CunhaDepartment of Experimental Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.ORCID http://orcid.org/0000-0001-6473-7368
Joost C M MeijersDepartment of Experimental Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Frits R RosendaalDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Astrid van Hylckama VliegDepartment of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
Pieter H ReitsmaDepartment of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
Saskia MiddeldorpDepartment of Vascular Medicine, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundFamily studies have shown a strong heritability component for venous thromboembolism (VTE), but established genetic risk factors are present in only half of VTE patients.

aimTo identify genetic risk factors in two large families with unexplained hereditary VTE.

methodsWe performed whole exome sequencing in 10 affected relatives of two unrelated families with an unexplained tendency for VTE. We prioritized variants shared by all affected relatives from both families, and evaluated these in the remaining affected and unaffected individuals. We prioritized variants based on 3 different filter strategies: variants within candidate genes, rare variants across the exome, and SNPs present in patients with familial VTE and with low frequency in the general population. We used whole exome sequencing data available from 96 unrelated VTE cases with a positive family history of VTE from an affected sib study (the GIFT study) to identify additional carriers and compared the risk-allele frequencies with the general population. Variants found in only one individual were also retained for further analysis. Finally, we assessed the association of these variants with VTE in a population-based case-control study (the MEGA study) with 4,291 cases and 4,866 controls.

resultsSix variants remained as putative disease-risk candidates. These variants are located in 6 genes spread among 3 different loci: 2p21 (PLEKHH2 NM_172069:c.3105T>C, LRPPRC rs372371276, SRBD1 rs34959371), 5q35.2 (UNC5A NM_133369.2:c.1869+23C>A), and 17q25.1 (GPRC5C rs142232982, RAB37 rs556450784). In GIFT, additional carriers were identified only for the variants located in the 2p21 locus. In MEGA, additional carriers for several of these variants were identified in both cases and controls, without a difference in prevalence; no carrier of the UNC5A variant was present.

conclusionDespite sequencing of several individuals from two thrombophilic families resulting in 6 candidate variants, we were unable to confirm their relevance as novel thrombophilic defects.

Indexed as

ExomeGenetic Predisposition to DiseasePolymorphism, Single NucleotideAdultAllelesCase-Control StudiesExome SequencingFemaleGene FrequencyGenetic LociHumansMaleMiddle AgedPedigreeRisk FactorsSequence Analysis, DNA

Identifiers

PMID29117201
PMCPMC5695603

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.